Support frame assembly

Details Support frame assembly Support frame assembly

1998-10-26

2000-02-22

Chin-Shue, Alvin

Fire escape, ladder, or scaffold

Horizontal traversing - actuation, control, or response

Occupant actuation or control

182 17, E06C 500

Patent

active

060269316

ABSTRACT:
A support frame assembly including at least one pair of generally vertical spaced uprights joined together by transversely extending structural members and having caster wheel support members for supporting a rotatably mounted caster wheel mounted axle and a pedal actuatable lever engaging the axle to allow selective movement of the caster wheel mounted axle between "mobile" and "use" mode conditions--the invention further including a joined second pair of generally vertical spaced uprights each having a caster wheel support member for yieldably supporting a caster wheel arrangement for selective movement between "mobile" and "use" modes.

REFERENCES:
patent: 1759424 (1930-05-01), Strauss
patent: 3291254 (1966-12-01), Mihalik
patent: 4624341 (1986-11-01), Lee
patent: 5653306 (1997-08-01), Bendickson

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